Re-add test that broke with GUC workaround

src/test/regress/expected/with_modifying.out

@@ -586,6 +586,24 @@ raw_data AS (
 SELECT * FROM raw_data ORDER BY val;
 ERROR:  cannot perform distributed planning for the given modification
 DETAIL:  Recursively planned distributed modifications with ctid on where clause are not supported.
+-- Needed becaues of CTE inlining triggering https://github.com/citusdata/citus/issues/3189
+SET citus.enable_cte_inlining TO FALSE;
+WITH added_data AS (
+	INSERT INTO modify_table VALUES (1, trunc(10 * random())), (1, trunc(random())) RETURNING *
+),
+select_data AS (
+	SELECT val, now() FROM added_data WHERE id = 1
+),
+raw_data AS (
+	DELETE FROM modify_table WHERE id = 1 AND val IN (SELECT val FROM select_data) RETURNING *
+)
+SELECT COUNT(*) FROM raw_data;
+ count
+---------------------------------------------------------------------
+     2
+(1 row)
+
+SET citus.enable_cte_inlining TO TRUE;
 WITH added_data AS (
 	INSERT INTO modify_table VALUES (1, trunc(10 * random())), (1, trunc(random())) RETURNING *
 ),

src/test/regress/sql/with_modifying.sql

@@ -354,6 +354,20 @@ raw_data AS (
 )
 SELECT * FROM raw_data ORDER BY val;
 
+-- Needed becaues of CTE inlining triggering https://github.com/citusdata/citus/issues/3189
+SET citus.enable_cte_inlining TO FALSE;
+WITH added_data AS (
+	INSERT INTO modify_table VALUES (1, trunc(10 * random())), (1, trunc(random())) RETURNING *
+),
+select_data AS (
+	SELECT val, now() FROM added_data WHERE id = 1
+),
+raw_data AS (
+	DELETE FROM modify_table WHERE id = 1 AND val IN (SELECT val FROM select_data) RETURNING *
+)
+SELECT COUNT(*) FROM raw_data;
+SET citus.enable_cte_inlining TO TRUE;
+
 WITH added_data AS (
 	INSERT INTO modify_table VALUES (1, trunc(10 * random())), (1, trunc(random())) RETURNING *
 ),